1982 PROM QUESTION unanswered!

[Scot Sealander]

Jake Sternberg wrote:

> But i want to READ them.

Understood.

> Does anyone know why i can't READ the delco OEM PROM
> nor the hypertech aftermarket PROM on this 1982 ECM
> (crossfire injection from a camaro)???

Ok, Had to read one once.... Let's see.

The old Crossfire PROM is here.  To read it, pin 18 and 19 are tied high.
Pins 20 and 21 are tied low.  Read it as a 2732.  It will read it four
times, i.e., it will repeat the data 4x in the 2732 address space, as the
82S181 is just a 1k part. 

Read just fine in a Intronics pocket programmer.  Also used the same 
reader to read the ROM out of the Crossfire ECM....

Scot Sealander   Sealand at clarityconnect.com